[Gmsh] sweeping through a mode shape view

[jean pierre aubry]

Le Mon, 27 Aug 2012 18:21:39 +0200,
Geordie McBain <gdmcbain at freeshell.org> a écrit :

> 2012/8/27 jean pierre aubry <jeanpierre at lamachine.fr>:
> > hello
> >
> > when i do a modal analysis in Code_Aster, with, let's say, 20 modes
> > saved in a med file
> > in Gmsh for every single calculated mode i can only
> > see the maximum deformed shape for each mode
> > is it possible to show on the screen an animation for each mode
> > (with a sin function maybe)
> > i admit it is mostly useful to show to the customer, but!
> >
> > the sweep button at the bottom of the screen will sweep thru the 20
> > calculated mode max values which is meaningless
> >
> > is that possible ?
> 
> Hello.  Yes, it is, and it's pretty easy and the results look good
> too.  The technique used to be in some of the tutorial material, I
> think, but now I can't find it.  Something more graphical than the
> tutorial/t1.geo, etc.  So I can't give you a proper reference, but the
> basic idea is to use a For-loop in a Gmsh script incrementing the
> View.DisplacmentFactor with the phase, as follows.
> 
> %<---
> For frame In {1:Frames}
>   View[1].DisplacementFactor = Sin (2 * Pi * frame/Frames);
>   Print Sprintf ("sloshing-%03g.png", frame);
> EndFor
> --->%
> 
> This isn't a complete working example, but hopefully is enough to
> suggest what needs to be done.


hello Geordie

thanks for your example looks like tutorial t8 isnt it
i forgot to  explain that i had like to perform this feature with
a .med file

jean pierre aubry